Hoernesia socialis

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- HoernesiaPBDB
- Diet
- suspension feederPBDB, for Pterioidea
- Life habit
- epifaunalPBDB, for Pterioidea
- Motility
- stationary, attached, epibiontPBDB, for Pterioidea
- Vision
- blindPBDB, for Bivalvia
- Environment
- marine,brackishPBDB, for Ostreida
Time the record covers
At least 5.7 million years on record.
The record covers at least 245.19 Mya to 239.48 Mya. No occurrence read is dated outside 251.902 Mya to 201.4 Mya.
30 occurrences of Hoernesia socialis on record, most of them in the Middle Triassic. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
30 occurrences- Early Triassicunder 1%
- Middle Triassic97%
- Late Triassic2%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
10 formations
- Trochitenkalk Formation · Muschelkalk Group8
- Zuhanya Limestone Formation4
- Karchowice Formation3
- Zamostie Limestone Formation1
- brachiopod-limestone Formation1
- Wellenkalk Formation1
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The named rock units Hoernesia socialis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Hoernesia socialis and its relatives
Middle TriassicWhere Hoernesia socialis and its relatives were recorded in the Middle Triassic.
Found in the same rock
352 taxa- Coenothyris vulgaris15 sites
- Terquemia difformis11 sites
- Entolium discites10 sites
- Neoschizodus laevigatus10 sites
- Pleuromya10 sites
- Bakevellia costata9 sites
- Myophoria vulgaris9 sites
- Plagiostoma striatum9 sites
- Loxonema8 sites
- Promysidiella eduliformis8 sites
- Placunopsis ostracina7 sites
- Pleuronectites laevigatus7 sites
- Astartellopsis triasina6 sites
- Neritaria6 sites
- Elegantinia5 sites
- Encrinus liliiformis5 sites
- Gervillia mytiloides5 sites
- Neoschizodus cardissoides5 sites
- Plagiostoma5 sites
- Worthenia5 sites
- Elegantinia elegans4 sites
- Enantiostreon4 sites
- Microconchus valvatus4 sites
- Myalina4 sites
The Paleobiology Database records 27 sites for Hoernesia socialis, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
18 references- Recovery and diversification of marine communities following the late Permian mass extinction event in the western Palaeotethys5
- Faunal lists from Muschelkalk Museum, Ingelfingen, Germany4
- Brachiopod-bivalve assemblages of the middle Triassic Terebratula Beds, Upper Siesia, Poland3
- Die stratigrafische Stellung der Gibsvorkommen in der Trias von Recoaro (Vicentin, Italien), [The stratigraphic position of the occurrence at the Triassic]2
- Der Obere Muschelkalk im nordwestlichen Niederhessen2
- Zur Kenntnis des untern Trochitenkalkes in nördlichen Kraichgau2
- Bivalves and other macrobenthic fauna from the Ladinian "Muschelkalk" of Punta del Lavatoio (Alghero, SW Sardinia)1
- Bivalve assemblages from the Middle Triassic Muschelkalk of the Mecsek Mts, South Hungary: An overview1
- Stratigraphy and macrofauna of the Zámostie limestones (upper Pelsonian-lower Illyrian) of the Choc Nappe at the southern slopes of the Nizke Tatry Mts. (West Carpathians)1
- Muschel/Krinoiden-Bioherme im Oberen Muschelkalk (mo1, Anis) von Crailsheim und Schwäbisch Hall (Südwestdeutschland) [Pelecypod/Crinoid bioherms in the Upper Muschelkalk (mo1, Anisian) of Crailsheim and Schwäbisch Hall (SW Germany)]1
- Paleontologia y paleoecolgia de los yacimientos fosiliferos del Muschelkalk superior entre Alcover y Mont-Ral (Montañas de Prades, Provincia de Tarragona)1
- Fazies und Fauna des Oberen Muschelkalkes von Willebadessen1
Each of the 30 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 6 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Hoernesia socialis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Hoernesia socialis was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHoernesia through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Schlotheim 1823)